590
FOUS54 KMEG 282155
PFWMEG
FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE MEMPHIS TN
355 PM CST MON NOV 28 2022
MSZ002-291000-
WINBORN NFDRS SITE-MARSHALL MS
34.69N 89.30W ELEV. 500 FT
355 PM CST MON NOV 28 2022
DATE 11/28/22 TUE 11/29/22 WED 11/30/22 THU
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
MIN/MAX TEMP 46 67 41 50 28
TEMP 52 47 47 47 47 57 63 65 65 66 66 61 43 44 47 49 41 34 32 30 28
DEWPT 47 46 45 45 46 54 60 62 64 64 64 60 42 36 29 26 27 26 26 22 20
MIN/MAX RH 100 84 100 40 78
RH 83 96 93 93 96 90 90 90 97 93 93 97 96 73 49 40 57 72 78 72 71
WIND DIR SE SE SE SE SE S S S S S SW W NW N N N N N N N NE
WIND SPD 2 3 3 4 6 10 12 11 10 9 6 9 11 12 10 9 3 2 2 3 3
WIND GUST 25 24 23 21 20 27 25 20
CLOUDS CL FW CL FW FW B1 OV OV B2 OV B2 B1 FW CL CL CL CL FW FW FW FW
CLOUDS(%) 4 14 5 11 9 66 93 94 87 90 84 63 24 4 1 1 1 8 8 9 22
POP 12HR 0 90 90 0 0
QPF 12HR 0 0.51 0.40 0 0
RAIN SHWRS SC O O O SC IS
TSTMS IS O O O SC
T WIND DIR S SE S S S S S S S S SW W N N N N N N N N NE
T WIND SPD 3 11 14 14 14 17 21 14 20 23 23 27 27 20 16 13 8 6 8 9 9
MIXHGT M AGL 25 39 300 304 321 444 843 910 64 38
MIXHGT FT AGL 82 128 984 998 1054 1457 2766 2984 209 126
MIXHGT M MSL 147 161 422 426 443 566 965 1031 186 160
MIXHGT FT MSL 482 528 1384 1398 1454 1857 3166 3384 610 526
TRANSWIND DIR SE S S S S W N N N N
TWIND SPD M/S 4 6 8 8 10 11 9 5 3 4
TWIND SPD MPH 10 14 18 18 23 26 20 12 6 9
VENT INDEX 790 3408 5852 8248 1132
CATEGORY DAY 1 2 3 4 1
500M MIXHGT T 59 61 64 67 70 64 42 45 43 41
500M TWND DIR S S S S S W NW N NE NE
500M TWND M/S 7 13 12 15 13 11 10 5 6 8
500M TWND MPH 17 29 27 34 29 26 23 11 13 18
DISPERSION 13 13 39 26 31 51 52 10 7 8
LAL 1 1 2 5 5 3 1 1 1 1
LASI 5 4 4 2 3 3 4 4 4 4
STABILITY F F C C D E C D F E
STAG INDEX 3 2 1 2 3
DATE 12/01/22 FRI 12/02/22 SAT 12/03/22 SUN 12/04/22 MON 12/05/22
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18
MAX/MIN TEMP 49 34 57 49 63 46 61 51 67
TEMP 46 40 34 37 53 50 51 53 61 55 49 46 57 54 53 56 65 62
DEWPT 23 28 30 33 40 45 51 53 56 54 48 46 50 54 53 56 61 61
RH 40 62 85 85 61 83100 100 84 96 96 100 77100100 100 87 97
WIND DIR E SE S S SW NE SE S SW
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 B2 B2 B2 B2 B2 B2 OV OV B2 B2 OV OV B2
POP 12HR 0 5 20 40 40 40 40 40 40
RAIN SHWRS IS IS IS SC SC SC SC SC SC SC SC SC SC SC
BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT
DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP (F)....MAXIMUM/MINIMUM AIR TEMPERATURE
TEMP (F)............................AIR TEMPERATURE
DEWPT (F)...........................DEW POINT TEMPERATURE
MIN/MAX RH OR MAX/MIN RH (%)........MAXIMUM/MINIMUM HUMIDITY
RH (%)..............................RELATIVE HUMIDITY
WIND DIR (8 POINT COMPASS)..........20 FT. WIND DIRECTION
WIND SPD (MPH)......................20 FT. WIND SPEED
WIND CHILL (F)......................WIND CHILL
HEAT INDEX (F)......................HEAT INDEX
CLOUDS (CAT)........................CLOUD COVER CATEGORY
EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS (%)..........................CLOUD COVER AS A PERCENTAGE
POP 12HR (%)........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR (IN).......................LIQUID EQUIVALENT PRECIPITATON AMOUNT
WEATHER...
TYPE...
RAIN...........RAIN
RAIN SHWRS.....RAIN SHOWERS
TSTMS..........THUNDERSTORMS
DRIZZLE........DRIZZLE
SNOW...........SNOW
SNOWSHWRS......SNOW SHOWERS
SLEET..........SLEET
FLURRIES.......FLURRIES
FRZG RAIN......FREEZING RAIN
FRZG DRZL......FREEZING DRIZZLE
COVERAGE...
IS.............ISOLATED
SC.............SCATTERED
NM.............NUMEROUS
O..............OCCASIONAL
S..............SLIGHT CHANCE
C..............CHANCE
L..............LIKELY
WD.............WIDESPREAD
D..............DEFINITE
AR.............AREAS
PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
TYPE...
F..............FOG
PF.............PATCHY FOG
+PF............PATCHY DENSE FOG
F+.............DENSE FOG
H..............HAZE
BS.............BLOWING SNOW
K..............SMOKE
BD.............BLOWING DUST
MIXHGT M AGL........................MIXING HEIGHT IN METERS ABOVE GROUND LEVEL
MIXHGT FT AGL.......................MIXING HEIGHT IN FEET ABOVE GROUND LEVEL
MIXHGT M MSL........................MIXING HEIGHT IN METERS MEAN SEA LEVEL
MIXHGT FT MSL.......................MIXING HEIGHT IN FEET MEAN SEA LEVEL
TRANSWIND DIR (8 POINT COMPASS).....TRANSPORT WIND DIRECTION
TWIND SPD MS (M/S)..................TRANSPORT WIND SPEED IN METERS PER SECOND
TWIND SPD MPH (MPH).................TRANSPORT WIND SPEED IN MILES PER HOUR
VENT INDEX (M2/S)...................VENT INDEX IN METERS SQUARED PER SECOND
CATEGORY DAY........................CATEGORY DAY BASED ON VENT INDEX
EXAMPLE: 1 = <2000; 2 = >=2000 AND <4000; 3 = >=4000 AND <8000;
4 = >=8000 AND <16000; 5 = >=16000
500M MIXHGT T (F)...................SURFACE TEMPERATURE NEEDED TO CREATE MIXING
UP TO 500 METERS ABOVE THE GROUND
500M TWND DIR (8 POINT COMPASS).....TRANSPORT WIND DIRECTION AT 500 METERS AGL
500M TWND M/S.......................TRANSPORT WIND AT 500 METERS AGL IN M/S
500M TWND MPH.......................TRANSPORT WIND AT 500 METERS AGL IN MPH
DISPERSION..........................DISPERSION INDEX FOR SMOKE DISPERSION
EXAMPLE: 1-6 = VERY POOR; 7-12 = POOR; 13-20 = GENERALLY POOR
21-40 = FAIR; 41-60 = GENERALLY GOOD; 61-100 = GOOD
101+ = EXCELLENT
LAL.................................LIGHTNING ACTIVITY LEVEL
EXAMPLE: 1 = NO THUNDERSTORMS; 2 = ISOLATED THUNDERSTORMS
3 = WIDELY SCATTERED THUNDERSTORMS; 4 = SCATTERED THUNDERSTORMS
5 = NUMEROUS THUNDERSTORMS; 6 = DRY LIGHTNING WITH NO RAIN
LASI (SAME AS HAINES INDEX).........LOWER ATMOSPHERIC SEVERITY INDEX
MEASURES FIRE GROWTH POTENTIAL
EXAMPLE: 1-3 = VERY LOW; 4 = LOW; 5 = MODERATE; 6 = HIGH
STABILITY...........................STABILITY CLASS
EXAMPLE: A = VERY UNSTABLE; B = MODERATELY UNSTABLE; C = SLIGHTLY UNSTABLE
D = NEUTRAL; E = SLIGHTLY STABLE; F = MODERATELY STABLE
G = VERY STABLE
STAG INDEX..........................STAGNATION INDEX
EXAMPLE: 0 = WINDS >= 10 MPH; 1 = WINDS <= 10 MPH WITH RAIN
2 = DRY WITH DECENT WINDS
3 = DRY WITH LIGHT WINDS AND STAGNATE CONDITIONS
WATCH/WARNING/ADVISORY...
EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
IN EFFECT FOR THE INDICATED HOUR
DAY 4 THROUGH 7...
MAX/MIN TEMP OR MIN/MAX TEMP (F)....MAXIMUM/MINIMUM AIR TEMPERATURE
TEMP (F)............................AIR TEMPERATURE
DEWPT (F)...........................DEW POINT TEMPERATURE
RH (%)..............................RELATIVE HUMIDITY
WIND DIR (8 POINT COMPASS)..........20 FT. WIND DIRECTION
WIND SPD (MPH)......................20 FT. WIND SPEED
AVG CLOUDS (CAT)....................AVERAGE CLOUD COVER CATEGORY
POP 12HR (%)........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS
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